Counterbores and Stepdrills

Subland Drill - 180°

M3 - M10

Conical Drill

4.00 - 9.00

Step Drill

M3 - M10

Step Drill

M3 - M10

Counterbore - 180°

6.50 - 20.00

Counterbore Body, Aircraft Short Series

1/4 - 1"

Counterbore Body, Aircraft Long Series

1/4 - 15/16

Counterbore Pilot, Detachable

1/8 - 1.1/2

Counterbore Body, Taper Shank

1/2 - 2.1/8

Counterbore Body, Straight Shank

1/4 - 2"

Chamfer drill for pre-tapping holes

3.30 - 10.40

Morse Taper Shank Subland Drill - 180°

M6 - M18

4706 Counterbore Aircraft Set, Short

1/4 - 1"

4703 Counterbore Set, Taper Shank

5/16 - 2.1/2

4702 Counterbore Set, Short

1/4 - N2

4704 Counterbore Pilot, Detachable

1/8 - 1.1/2

4705 Counterbore Set, Long

1/4 - 1.1/2